23163425 has 6 divisors (see below), whose sum is σ = 28722678. Its totient is φ = 18530720.

The previous prime is 23163419. The next prime is 23163463. The reversal of 23163425 is 52436132.

It can be written as a sum of positive squares in 3 ways, for example, as 1745041 + 21418384 = 1321^2 + 4628^2 .

It is not a de Polignac number, because 23163425 - 2⁴ = 23163409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23163394 and 23163403.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 463244 + ... + 463293.

It is an arithmetic number, because the mean of its divisors is an integer number (4787113).

Almost surely, 2^23163425 is an apocalyptic number.

23163425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23163425 is a deficient number, since it is larger than the sum of its proper divisors (5559253).

23163425 is an equidigital number, since it uses as much as digits as its factorization.

23163425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926547 (or 926542 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 23163425 is about 4812.8395984076. The cubic root of 23163425 is about 285.0586726438.

Adding to 23163425 its reverse (52436132), we get a palindrome (75599557).

The spelling of 23163425 in words is "twenty-three million, one hundred sixty-three thousand, four hundred twenty-five".